public function test_is_active()
 {
     Route::shouldReceive('currentRouteName')->once()->andReturn('about');
     $this->assertEquals('active', isActive(['faq', 'about']));
     Route::shouldReceive('currentRouteName')->once()->andReturn('home');
     $this->assertEquals('active', isActive('home'));
     URL::shouldReceive('current')->once()->andReturn('http://localhost:8000/about');
     $this->assertEquals('custom-clas-name', isActive('about', 'custom-clas-name'));
     Route::shouldReceive('currentRouteName')->once()->andReturn('news');
     $this->assertEquals('', isActive('home'));
 }